Initialize query storage dir in data extension module

extensions/ql-vscode/src/data-extensions-editor/data-extensions-editor-module.ts

@@ -5,15 +5,43 @@ import { CodeQLCliServer } from "../cli";
 import { QueryRunner } from "../queryRunner";
 import { DatabaseManager } from "../local-databases";
 import { extLogger } from "../common";
+import { ensureDir } from "fs-extra";
+import { join } from "path";
 
 export class DataExtensionsEditorModule {
-  public constructor(
+  private readonly queryStorageDir: string;
+
+  private constructor(
     private readonly ctx: ExtensionContext,
     private readonly databaseManager: DatabaseManager,
     private readonly cliServer: CodeQLCliServer,
     private readonly queryRunner: QueryRunner,
-    private readonly queryStorageDir: string,
-  ) {}
+    baseQueryStorageDir: string,
+  ) {
+    this.queryStorageDir = join(
+      baseQueryStorageDir,
+      "data-extensions-editor-results",
+    );
+  }
+
+  public static async initialize(
+    ctx: ExtensionContext,
+    databaseManager: DatabaseManager,
+    cliServer: CodeQLCliServer,
+    queryRunner: QueryRunner,
+    queryStorageDir: string,
+  ): Promise<DataExtensionsEditorModule> {
+    const dataExtensionsEditorModule = new DataExtensionsEditorModule(
+      ctx,
+      databaseManager,
+      cliServer,
+      queryRunner,
+      queryStorageDir,
+    );
+
+    await dataExtensionsEditorModule.initialize();
+    return dataExtensionsEditorModule;
+  }
 
   public getCommands(): DataExtensionsEditorCommands {
     return {
@@ -35,4 +63,8 @@ export class DataExtensionsEditorModule {
       },
     };
   }
+
+  private async initialize(): Promise<void> {
+    await ensureDir(this.queryStorageDir);
+  }
 }

extensions/ql-vscode/src/extension.ts

@@ -861,18 +861,14 @@ async function activateWithInstalledDistribution(
   );
   ctx.subscriptions.push(localQueries);
 
-  const dataExtensionsEditorQueryStorageDir = join(
-    tmpDir.name,
-    "data-extensions-editor-results",
-  );
-  await ensureDir(dataExtensionsEditorQueryStorageDir);
-  const dataExtensionsEditorModule = new DataExtensionsEditorModule(
-    ctx,
-    dbm,
-    cliServer,
-    qs,
-    dataExtensionsEditorQueryStorageDir,
-  );
+  const dataExtensionsEditorModule =
+    await DataExtensionsEditorModule.initialize(
+      ctx,
+      dbm,
+      cliServer,
+      qs,
+      tmpDir.name,
+    );
 
   void extLogger.log("Initializing QLTest interface.");
   const testExplorerExtension = extensions.getExtension<TestHub>(